#!/usr/bin/env python

from oled.device import ssd1306, sh1106
from oled.render import canvas

from PIL import ImageDraw, ImageFont, Image

import urllib2
import json
import time

from daemon import runner

class StratuxScreen():
    def __init__(self):
        self.stdin_path = '/dev/null'
        self.stdout_path = '/var/log/stratux-screen.log'
        self.stderr_path = '/var/log/stratux-screen.log'
        self.pidfile_path = '/var/run/stratux-screen.pid'
        self.pidfile_timeout = 5
    def run(self):
        font2 = ImageFont.truetype('/etc/stratux-screen/CnC_Red_Alert.ttf', 12)
        oled = ssd1306(port=1, address=0x3C)

        with canvas(oled) as draw:
            logo = Image.open('/etc/stratux-screen/stratux-logo-64x64.bmp')
            draw.bitmap((32, 0), logo, fill=1)

        time.sleep(10)
        n = 0

        while 1:
            time.sleep(1)
            response = urllib2.urlopen('http://localhost/getStatus')
            getStatusHTML = response.read()
            getStatusData = json.loads(getStatusHTML)
            CPUTemp = getStatusData["CPUTemp"]
            uat_current = getStatusData["UAT_messages_last_minute"]
            uat_max = getStatusData["UAT_messages_max"]
            es_current = getStatusData["ES_messages_last_minute"]
            es_max = getStatusData["ES_messages_max"]
    
            response = urllib2.urlopen('http://localhost/getTowers')
            getTowersHTML = response.read()
            getTowersData = json.loads(getTowersHTML)
            NumTowers = len(getTowersData)

            with canvas(oled) as draw:
                pad = 2 # Two pixels on the left and right.
                text_margin = 25
                # UAT status.
                draw.text((50, 0), "UAT", font=font2, fill=255)
                # "Status bar", 2 pixels high.
                status_bar_width_max = oled.width - (2 * pad) - (2 * text_margin)
                status_bar_width = 0
                if uat_max > 0:
                    status_bar_width = int((float(uat_current) / uat_max) * status_bar_width_max)
                draw.rectangle((pad + text_margin, 14, pad + text_margin + status_bar_width, 20), outline=255, fill=255) # Top left, bottom right.
                # Draw the current (left) and max (right) numbers.
                draw.text((pad, 14), str(uat_current), font=font2, fill=255)
                draw.text(((2*pad) + text_margin + status_bar_width_max, 14), str(uat_max), font=font2, fill=255)
                # ES status.
                draw.text((44, 24), "1090ES", font=font2, fill=255)
                status_bar_width = 0
                if es_max > 0:
                    status_bar_width = int((float(es_current) / es_max) * status_bar_width_max)
                draw.rectangle((pad + text_margin, 34, pad + text_margin + status_bar_width, 40), outline=255, fill=255) # Top left, bottom right.
                # Draw the current (left) and max (right) numbers.
                draw.text((pad, 34), str(es_current), font=font2, fill=255)
                draw.text(((2*pad) + text_margin + status_bar_width_max, 34), str(es_max), font=font2, fill=255)
                # Other stats.
                seq = (n / 5) % 2
                t = ""
                if seq == 0:
                    t = "CPU: %0.1fC, Towers: %d" % (CPUTemp, NumTowers)
                if seq == 1:
                    t = "GPS Sat: %d/%d/%d" % (getStatusData["GPS_satellites_locked"], getStatusData["GPS_satellites_seen"], getStatusData["GPS_satellites_tracked"])
                    if getStatusData["GPS_solution"] == "GPS + SBAS (WAAS / EGNOS)":
                        t = t + " (WAAS)"
                #print t
                draw.text((pad, 45), t, font=font2, fill=255)

            n = n+1


stratuxscreen = StratuxScreen()
daemon_runner = runner.DaemonRunner(stratuxscreen)
daemon_runner.do_action()